Hi
On 26 Oct 2006 at 13:52, Mihai Nica wrote: Date sent: Thu, 26 Oct 2006 13:52:11 -0700 (PDT) From: Mihai Nica <[EMAIL PROTECTED]> To: Benjamin Dickgiesser <[EMAIL PROTECTED]>, r-help@stat.math.ethz.ch Subject: Re: [R] Header of dataframe > names(temp)[1]="a" Isn't it changing name of first column? I suspect, that Benjamin speaks about column of row names which I believe cannot have itself a name. Petr > > see: ?names > > did you really created that function :-)? > > Mihai Nica > 170 East Griffith St. G5 > Jackson, MS 39201 > 601-914-0361 > > ----- Original Message ---- > From: Benjamin Dickgiesser <[EMAIL PROTECTED]> > To: r-help@stat.math.ethz.ch > Sent: Thursday, October 26, 2006 12:08:08 PM > Subject: [R] Header of dataframe > > Hi > I am fairly new to R and I would appreciate some help to hopefully a > trivial problem. > > I created a function: > > summary.aggregate <- function(y, ...) > { > temp.mean <- aggregate(y, FUN=mean, ...) > temp.sd <- aggregate(y, FUN=sd, ...) > temp.length <- aggregate(y, FUN=length, ...) > temp <- > data.frame(cbind(mean=temp.mean$x,stdev=temp.sd$x,n=temp.length$x) > ) > } > > this outputs e.g.: > > mean stdev n > 1 645.6125 65.94129 60 > 2 655.2121 70.64094 60 > 3 633.3161 80.48620 60 > 4 650.3897 77.59191 60 > 5 630.4955 84.98888 60 > 6 656.2608 66.16100 60 > 7 666.1775 74.39796 60 > 8 663.1543 71.10769 60 > > Is there an easy way to add a column name to the first column? > > Thank you, > Benjamin > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html and provide commented, > minimal, self-contained, reproducible code. > > > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html and provide commented, > minimal, self-contained, reproducible code. Petr Pikal [EMAIL PROTECTED] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.